Theoretical Investigation of the Relation between the Output of a Methane Internal Reforming SOFC and the Composition of the Feedstream

Abstract:

It is a common point for the current fuel cell research to correlate the composition of the feedstream to the output of a Solid Oxide Fuel Cell (SOFC). In this direction, the detailed steady-state transport processes (i.e. the flow regime, the heat transfer, the mass and the charge transport) are mathematically described here. A new mesoscopic mathematical model has been developed through the relative differential equations along with the appropriate boundary conditions, which have been numerically integrated by using the commercially available software CFD-ACE+, in order to calculate the electricity produced by the fuel cell. It is found that the produced current density increases with CH4 percentage in the feeding mixture.

• Periodical: Defect and Diffusion Forum (Volumes 297-301)
• Pages: 838-843
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.297-301.838
• Online since: April 2010
• Authors: E. Vakouftsi, C. Athanasiou, G. Marnellos, Frank A. Coutelieris
• Keywords: Internal Steam Reforming, Methane, Modeling, Solid Oxide Fuel Cell (SOFC), Transport Processes

References

[1] J.S. Newman and C.W. Tabias:. J. Electrochem. Soc. Vol. 109 (1962), p.1183.

[2] V. Gurau, H. Liu and S. Kakac: AIChE J. Vol. 44 (1998), p.2410.

[3] F. Jaouen, G. Lindbergh and G. Sundholm: J. Electrochem. Soc. Vol. 149 (2002), p. A437.

[4] F.A. Coutelieris, S. Douvartzides and P. Tsiakaras: J. Power Sources Vol. 123 (2003), p.200.

[5] S. Douvartzides, F.A. Coutelieris and P.E. Tsiakaras: J. Power Sources Vol. 5084 (2002), p.1.

[6] E. Vakouftsi, G. Marnellos, C. Athanasiou and F.A. Coutelieris: Defect Diffusion Forum, Vol. 273-276 (2008), p.87.

DOI: 10.4028/www.scientific.net/ddf.273-276.87

[7] E. Achenbach and E. Reinsche: J. Power Sources Vol. 52 (1994), p.238.

[8] J. -M. Klein, Y. Bultel, M. Pons and P. Ozil: J. Fuel Cell Tech. Vol. 7 (2007), p.425.

[9] A.M. Sukeshini, B. Habibzadeh, B.P. Becker, C.A. Stoltz, B.W. Eichhorn and G.S. Jackson: J. Electrochem. Soc. Vol. 154 (2006), p. A705.

[10] P.A. Ramakrishna, S. Yang and C.H. Sohn: J. Power Sources Vol. 158 (2006), p.378.